On one end of this beam is a ratchet wheel, with a tooth to keep it from turning round backwards by the tension of the web.
The ratchet wheel and pawl shown in fig. 48 are part of the lubricator.
ClickThe click, pawl, or dog, is a necessary accessory of a ratchet wheel.
We think a ratchet wheel should not be employed with equidistant pallets.
A spring catch kept the ratchet wheel in place at the end of each forward rotation of the wheel by the pawl.
On the side of the clock case was a contact maker, which closed the circuit by the pin on the ratchet wheel, R, once every minute.
Adjusting the diaphragm contact on the ratchet wheel will change the tone of the horn.
The L lever carries a pawl which operates a ratchet wheel, placed on the handle end of the slide rest cross feed screw.
People say the initiative and the referendum, against which I have talked, are like a ratchet wheel.
At every quarter mile, on many lines, are straining-posts with ratchet wheel winders, for tightening the wires.